213232112 has 20 divisors (see below), whose sum is σ = 415914600. Its totient is φ = 105899328.

The previous prime is 213232067. The next prime is 213232127. The reversal of 213232112 is 211232312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42338 + ... + 47105.

It is an arithmetic number, because the mean of its divisors is an integer number (20795730).

Almost surely, 2^213232112 is an apocalyptic number.

It is an amenable number.

213232112 is a deficient number, since it is larger than the sum of its proper divisors (202682488).

213232112 is a wasteful number, since it uses less digits than its factorization.

213232112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89600 (or 89594 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 213232112 is about 14602.4693802110. The cubic root of 213232112 is about 597.4261150565.

Adding to 213232112 its reverse (211232312), we get a palindrome (424464424).

The spelling of 213232112 in words is "two hundred thirteen million, two hundred thirty-two thousand, one hundred twelve".